HUBBLE SPACE TELESCOPE
DAILY REPORT #1719
PERIOD COVERED: 0000Z (UTC) 09/16/96 - 0000Z (UTC) 09/17/96
Daily Status Report as of 261/0000Z
1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:
1.1 Completed Two Sets of WF/PC-2 6906 (WF/PC-2 Cycle 6 Calibration: =
Internal Monitor-Visual Flats)
The WF/PC-2 was used to make internal calibration visual flat =
images as part of the Cycle 6 internal monitoring of the instrument's =
operations. This proposal defines the standard series of internal flat =
fields, which will be executed twice per month. The observations were =
completed as planned, and no anomalies were reported.
1.2 Completed FOS/RD 6796 (Spectral Mapping of Accretion Disks in =
Cataclysmic Binaries)
The Faint Object Spectrograph (Red Side) was used to make rapid =
mode spectrographic mapping observations of the accretion disk around the =
cataclysmic binary system V348-Puppis taken during the system's eclipse =
phase. The observations were completed as planned, and no problems were =
reported.
1.3 Completed Two Sets of WF/PC-2 6253 (Pure Parallel Archive Program)
The WF/PC-2 was used to execute a pure parallel program taking =
ultraviolet observations running concurrently with prime science observati=
ons. The intent is to search for extra-galactic sources with flux =
excesses at 3000 A0 and galactic sources with excesses at 1600 A0. The =
observations were completed as planned, and no problems were reported.
1.4 Completed WF/PC-2 6346 (Snapshot Survey of the Ultraluminous IRAS =
Galaxy Sample-Part 1 High)
The WF/PC-2 was used to make snapshot survey observations of the =
ultraluminous IRAS galaxy QDOTULIR. T hese data will be searched for =
multiple cores, which imply a merger has occurred, and for starburst =
regions. The observations were executed as scheduled, and no anomalies =
were noted.
1.5 Completed Two Sets of FOS/RD 6914 (FOS Cycle 6: Location of =
Spectra and Wavelength Calibration - Red Side)
The Faint Object Spectrograph (Red Side) was used to make both a =
TALED and a wavelength calibration image. All observations were made =
using internal light sources. This proposal will be executed a total of =
12 times during cycle 6 (i.e., once per month). The observations were =
executed as scheduled, and no anomalies were noted.
1.6 Completed FOS/RD 6505 (Confirming the Quasar in Cygnus-A)
The Faint Object Spectrograph (Red Side) was used to make =
spectrographic observations of Cygnus-A in order to confirm the presence =
of Mg II emission lines. Signs of this emission were seen in previous =
HST observations, but there was a low signal/noise ratio and the =
existence of an unflagged bad diode wade it necessary to acquire another =
observation to determine if the feature was real. The observations were =
executed as scheduled, and no anomalies were noted.
1.7 Completed Two Sets of WF/PC-2 7203 (Cosmology with the Medium Deep =
Survey - Short Orbit Cases)
'
The WF/PC-2 was used to take short (about 20-minute) exposures, to =
be taken in parallel with the prime science observations, using the I =
filter. These exposures are part of the medium-deep survey, which =
emphasizes exposures that will be useful in obtaining cosmological =
parameters. The observations were completed as planned, and no problems =
were reported.
1.8 Completed FOS/RD 6589 (Associated Absorption Lines in QSOs)
The Faint Object Spectrograph (Red Side) was used to make =
spectrographic observations of the QSO PKS0237-23 in order to study its =
associated absorption lines. The absorption lines (ZA) and the emission =
lines (ZE) give similar redshifts, that is ZA~ZE. Recent studies have =
suggested that the metallicity in its environment is higher than the =
solar value. Near the beginning of this proposal, at 260/144618Z, a =
NSSC-1 status buffer message was received, indicating that an observation =
failed when no target was identified in the FOS aperture. HSTAR 5713 was =
written. The effect on the remaining science is not known. However, the =
remaining observations were completed as planned, and no further =
anomalies were reported.
1.9 Completed WF/PC-2 6802 (Cosmology With the Medium Deep Survey)
The WF/PC-2 was used to make observations taken in parallel with =
the prime science observations as part of the Medium Deep Sky Survey. =
The observations were executed as scheduled, and no problems were =
reported.
1.10 Completed WF/PC-2 6348 (Blue Continuum Snapshots of 3CR Radio =
Galaxies)
The WF/PC-2 was used to make some snapshot images of the blue =
continuum in radio galaxy 3C78.0. Combined with existing data, these =
exposures will provide high spatial resolution information on the color =
distribution within galaxies, redding due to dust, spacial indices of the =
optical synchrotron jets, and colors of the active nuclei and tidal jets. =
The observations were executed as scheduled, and no anomalies were =
noted.
1.11 Completed FOS/BL 6498 (Accretion Streams in Magnetic Variables: =
FOS Eclipse of 4 Rosa)
The Faint Object Spectrograph (Blue Side) was used to make rapid =
mode spectrographic observations of the accretion streams in the magnetic =
variable star (i.e., cataclysmic variable) RXJ0515+01. This is a binary =
system, and it contains a white dwarf star, an accretion disk, a mass =
stream, and hot spot where the mass stream hits the disk and a companion =
star. The observations were completed as planned and no anomalies were =
reported.
1.12 Completed GHRS/2 6615 (Fundamental Parameters of White Dwarfs in =
Close Binaries)
The High Resolution Spectrograph (Side Two) was used to make =
spectrographic observations of the close binary system EUEV-J0720 (a =
white dwarf/M-dwarf binary system) in order to obtain fundamental =
parameters of its white dwarf star. As the older star ages through the =
asymptotic branch phase, the gaseous envelope which compasses both stars =
dissipates and the white dwarf becomes visible. A wavelength calibration =
image was also taken. The observations were executed as scheduled, and =
no anomalies were noted.
2.0 FLIGHT OPERATIONS SUMMARY:
2.1 Guide Star Acquisitions:
Scheduled Acquisitions : 4
Successful : 4
Scheduled Reacquisitions : 9
Successful : 9
2.2 FHST Updates:
Scheduled : 11
Successful : 11
2.3 Operations Notes:
There were no reported operational problems.
3.0 SIGNIFICANT FORTHCOMING EVENTS:
Nothing at this time.
/DMH